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资源说明：Code used as the basis for my articles in the Game Programming Gems series of books: Lock-free algorithms, Mersenne Twister, and Zobrist Hash.
This is the code that I used as the basis for my articles in the Game Programming Gems series. I wrote the following articles, both of which were included in [Best of Game Programming Gems](http://amzn.to/pODKPx). * Zobrist Hash using the Mersenne Twister, first included in [Game Programming Gems 4](http://amzn.to/raRvoG) \(2004\). * Lock\-Free Algorithms, first included in [Game Programming Gems 6](http://amzn.to/noFiJx) \(2006\). This code is targetted toward Visual C++ 2015, though it should also work with GCC. The master branch serves as the up\-to\-date version of this code. The gems\_bugfix branch contains the code and projects as they were written for the Gems books, with minor bug fixes as necessary. The Mersenne Twister code was written in a tutorial style, and is _not_ optimized for speed. C++03 was the latest version of C++ available when this code was originally written. C++11 now includes the Mersenne Twister as one of several new random number libraries available by default. The Lock\-Free code is reasonably good, though I caution any user against using any lock\-free algorithms, as that style of code is _exceptionally_ difficult to debug, and often can perform worse than the equivalent code using locks. It is fun as a mental exercise, but often difficult for many programmers to avoid the temptation of using it in practice. As a case\-in\-point, this lock\-free queue does have a bug in `LockFreeQueue::Add()`. The CAS between \_pTail\->pNext and nullptr isn't correct as that element isn't guaranteed to still be in the queue. I don't have a fix, and I can't reproduce the issue, though it has been reported on Xbox 360 and appears to be a bug independent of architecture. Toby Jones \([www.turbohex.com](http://www.turbohex.com), [ace.roqs.net](http://ace.roqs.net)\)
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